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[Xen-devel] [PATCH] [VTD] Add a command line param to enable/disable pas
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| Subject: | [Xen-devel] [PATCH] [VTD] Add a command line param to enable/disable pass-through feature |
| From: | "Han, Weidong" <weidong.han@xxxxxxxxx> |
| Date: | Wed, 10 Sep 2008 17:06:38 +0800 |
| Cc: | "Cihula, Joseph" <joseph.cihula@xxxxxxxxx>, "Kay, Allen M" <allen.m.kay@xxxxxxxxx> |
| Delivery-date: | Wed, 10 Sep 2008 02:07:26 -0700 |
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| Thread-index: | AckTJIg5nf2dlParSU2gsnmUFXspeA== |
| Thread-topic: | [Xen-devel] [PATCH] [VTD] Add a command line param to enable/disable pass-through feature |
Taking security into accout, it's not suitable to bypass VT-d translation for Dom0 by default when the pass-through field in extended capability register is set. This feature is for people/usages who are not overly worried about security/isolation, but want better performance. This patch adds a command line param that controls if it's enabled or disabled. Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
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